Write a linux shell program to perform find the sum of the digits of a given number

Find the sum of the digits of a given number

Click me to definition of Sum of digits

Code:

clear echo ----------------------------------- echo '\tSum of Digits' echo ----------------------------------- echo Enter the n value read n sum=0 while [ $n -gt 0 ] do x=$(expr $n % 10) n=$(expr $n / 10) sum=$(expr $sum + $x) done echo The Sum of Digits is $sum

Output:

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Sum of Digits
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Enter the n value
123

The Sum of Digits is 6